/Engine/Source/Editor/UnrealEd/Classes/ActorFactories/ActorFactory.h
Performs any final tweaking of the PlacementInfo that the asset factory may need to do. This includes final adjustments to things like transforms. This should NOT perform any viewport or editor specific adjustments, such as grid snapping, alignment to hit objects, or undo tracking.
true if the asset is still valid to place after final adjustments.
virtual bool PrePlaceAsset ( [FAssetPlacementInfo](API\Editor\EditorFramework\Subsystems\FAssetPlacementInfo) & InPlacementInfo, const [FPlacementOptions](API\Editor\EditorFramework\Subsystems\FPlacementOptions) & InPlacementOptions )